Gas-purifier



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(No Model.)

0. REW.

GAS PURIFIER.

No'. 290,928. Patented Dec. 25, 1883.

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H. U. REW.

GAS PURIFIER.

No. 290.928. Patented Dec. 25, 1883.

' ilNTTnn STATES PATENT Unmet).

HENRY C. REY-V, OF CHICAGO, ILLINUIS.

GAS-PURIFIER.

SPECIFICATION forming part of Letters Patent No. 290,928, dated December25, 1883.

(No model.)

To aZZ whom it may concern/.-

Be it known that I, HENRY 0. Raw, of Chicago, in the county of Cook andState of Illinois, have invented certain new and useful Improvements inGas-Purifiers; and I do hereby declare that the following is a full,clear, and exact description of the invention, which will enable othersskilled in the art to which it ap pertains to make and use the same,reference being had to the accompanying drawings, and to the letters ofreference marked thereon, which form part of this specification.

Heretofore in constructing lime-chambers for purifying gas they havebeen built in square or oblong form lying in a horizontal position, andrequiring a large amount of ground and a large building to cover themfrom the weather. The have also required water-seals entirely aroundthem in which to set the covers to prevent the leakage of gas, alsohoisting and carrying apparatus to lift up and carry away the coverswhile they were being cleansed and recharged with fresh lime. A largeamount of time and labor has also been required to remove the spent limefrom the purifiers, and recharge them. Considerable heat has also beenrequired in cold weather to prevent the freezing up of the water-seals.

To overcome these objections and difficulties,

and to so construct a lime-purifier that it should require very littleroom, no waterseals, no apparatus for lifting and carrying off thecovers, and the minimum of time and labor to clean and recharge them arethe objects of my invention.

In the accompanying drawings, Figure 1 represents a vertical section ofmy improved purifier; Fig. 2, a cross-section of the same at the line.70 x of Fig. 1. Fig. 3 is a view in elevation of a modification of mypurifier, and Fig. 4 a cross-section of the same at the line m as ofFig. 3, in both cases the cross-sections being. shown with the trays forholding the lime in a horizontal position.

The purifier is preferably constructed in an upright position. Letter Arepresents the outside shell of the same,which is constructed ofboiler-iron. Access to the interior is gained by the doors 0 c c, &c.,used for charging the trays with fresh lime.

The letters 13 B B, &c., represent trays preferably made of slats orbars of wood, and they cleaned and charged.

rest on the horizontal pivoted axles I), which rest in suitablebearings, in which they can be turned, in order to discharge the spentlime. The trays are connected by the upright connecting-rods e e c, &c.,hinged to each tray at c, and'all the trays are thus operated togetherby moving the lever E, which is done to empty all the crates at once ofspent lime, causing it to fall to the bottom of the purifier, fromwhence it is removed by the doors F. When the spent lime has been thusemptied, the trays are returned to a horizontal position (resting attheir outer edges on the lugs 8, projecting from the shell. and verticalpartition) by the use of the lever E. ready for being filled or chargedwith fresh lime. The lime to recharge the trays is lifted by theelevator D, and is placed upon the trays by opening the doors 0 c c,&c., which are then closed and fastened gas-tight.

Fig. 1 shows one half of the purifier in op eration for purifying gas,and the other half with the trays tilted in position for discharg ingthe spent lime; but in operation two complete purifiers are preferablyused, one being employed in passing through it gas from the generator,while the other is being discharged of its spent lime and recharged inthe manner indicated with fresh lime.

The letter G indicates the gasinlet pipe, and G the gas-outlet pipe, andG valves for shutting both pipes when the purifier is being The arrowsindicate the direction in which the gas is passed. The purifier isdivided by the diaphragm H, rising from the upper portion of adouble-inclined floor, I, to a point above all the trays, in order thatthe gas may be passed up through one set of trays and down through theother. At the bottom the doors F are provided in the outer walls for theremoval of the spent lime.

In the modification shown in Fig. 3 two separate upright cylinders areemployed, connected at the top by a pipe, and each cylinder is providedwith a series of tilting trays.

If desired, the purifiers may be constructed in square or rectangularupright form.

Having described the construction and operation of this invention, whatI claim, and desire to secure by Letters Patent, is-

1. The upright purifying-vessel divided by the vertical partition intotwo chambers communicating at the top, in combination with the trayssupported on pivotal axle-bars, and means for tilting and replacing thetrays in position, and inlet and discharge pipes for gas, as described.

2. lhe divided purif yin g-vessel, as described, in combination with thetrays supported on pivoted bars, the upright rods 6, loosely connectedwith the trays by a hinged joint, and the tiltingdever connected to oneor more of the axle-bars, as and for the purpose described.

3. The divided purifyin g-Vessel A, provided with the pivoted trays, asdescribed, and having the doors 0 adjacent to the trays, in combinationwith the elevators D, as described.

4-. The divided purifying-vessel A, having the double-inclined floor Iat the bottom, and the disehargedoors in the exterior walls, incombination with the pivoted and tilting trays and the inlet and outletgas-pipes, as described.

In testimony that I claim the foregoing as my own I affix my signaturein presence of two witnesses.

MERRY C. HEW.

lVitnesses:

B. F. MoRsELL, O. E. DUFFY.

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